Originally posted by lt1s10
you really don't know what the stuff is or what its used for do you? my dad and brother used it in the 40's to check bearings in the old Babbitt bearing motors, where you shimmed the bearing cap to make them fit,(you've probably never did that either) and a 10,000.00 pair of mic. wouldn't have done you no good, if the shaft is in the motor, in the car, I'm not gonna pull it out just so I can get a mic. to it just to check it.
Yes,I know what the "STUFF" is.I use it to line my bird cage when I run out of paper.All bearings have some forum of babbit metal in them .Who re-builds engines when they are still in the car?Now days we turn the crank to the correct size so we don't have to "shim" the bearings.If the clearance is to tight and we need to change it we simply get bearings that are at .001,.002 under to loosen it up or we try a different brand or style of bearings.If you have to "shim" the bearing cap I would also think about "line boring the block"That was then this is now.